同系列文章：
功能说明
- 基于AForge.NET实现视频与图像抓取
开发工具
- Visual Studio v2015
- .NET Framework 4 Client Profile
- AForge.NET 2.2.5
演示程序界面
源代码下载
源代码
FaceCapture.cs
/* ----------------------------------------------------------
文件名称：FaceCapture.cs
作者：秦建辉
微信：splashcn
博客：http://www.firstsolver.com/wordpress/
开发环境：
Visual Studio V2015
.NET Framework 4 Client Profile
AForge.NET 2.2.5
版本历史：
V1.0 2016年11月01日
基于AForge.NET实现视频与图像抓取
参考资料：
http://www.aforgenet.com/framework/
------------------------------------------------------------ */
using AForge.Video.DirectShow;
using System;
using System.Windows.Forms;
namespace Splash
{
public partial class FaceCapture : Form
{
public FaceCapture()
{
InitializeComponent();
// 设置窗体图标
this.Icon = Properties.Resources.FingerPictureBox;
}
private void FaceCapture_Load(object sender, EventArgs e)
{ // 设定初始视频设备
comboBoxVideoDevices.DataSource = new FilterInfoCollection(FilterCategory.VideoInputDevice);
comboBoxVideoDevices.DisplayMember = "Name";
if (comboBoxVideoDevices.Items.Count > 0)
{
comboBoxVideoDevices.SelectedIndex = 0;
if (comboBoxVideoDevices.Items.Count == 1) comboBoxVideoDevices.Enabled = false;
}
else
{
button_Play.Enabled = false;
button_Capture.Enabled = false;
}
// 设置图片框初始图像
for (Int32 i = 1; i <= 4; i++)
{
FingerPictureBox box = (FingerPictureBox)this.Controls["fingerPictureBox" + i];
box.InitialImage = Properties.Resources.noimage;
}
}
private void button_Play_Click(object sender, EventArgs e)
{
if (((Button)sender).ImageIndex == 0)
{
if (comboBoxVideoDevices.SelectedIndex != -1)
{ // 开启视频
vsp.VideoSource = new VideoCaptureDevice(((FilterInfo)comboBoxVideoDevices.SelectedItem).MonikerString);
vsp.Start();
if (vsp.IsRunning)
{ // 改变按钮为“停止”状态
((Button)sender).ImageIndex = 1;
((Button)sender).Text = "停止";
// 允许拍照
button_Capture.Enabled = true;
}
}
}
else
{
if (vsp.IsRunning)
{
// 停止视频
vsp.SignalToStop();
vsp.WaitForStop();
// 改变按钮为“开始”状态
((Button)sender).ImageIndex = 0;
((Button)sender).Text = "开启视频";
// 关闭拍照
button_Capture.Enabled = false;
}
}
}
private void button_Capture_Click(object sender, EventArgs e)
{
// 判断视频设备是否开启
if (vsp.IsRunning)
{ // 进行拍照
for (Int32 i = 1; i <= 4; i++)
{
FingerPictureBox box = (FingerPictureBox)this.Controls["fingerPictureBox" + i];
if (box.ActiveImage == box.InitialImage)
{ // 更新图像
box.ActiveImage = vsp.GetCurrentVideoFrame();
break;
}
}
}
}
private void FaceCapture_FormClosing(object sender, FormClosingEventArgs e)
{
if (vsp.IsRunning)
{ // 停止视频
vsp.SignalToStop();
vsp.WaitForStop();
}
}
}
}
FaceCapture.Designer.cs
namespace Splash
{
partial class FaceCapture
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(FaceCapture));
this.vsp = new AForge.Controls.VideoSourcePlayer();
this.button_Capture = new System.Windows.Forms.Button();
this.imageList1 = new System.Windows.Forms.ImageList(this.components);
this.button_Play = new System.Windows.Forms.Button();
this.fingerPictureBox4 = new Splash.FingerPictureBox();
this.fingerPictureBox3 = new Splash.FingerPictureBox();
this.fingerPictureBox2 = new Splash.FingerPictureBox();
this.fingerPictureBox1 = new Splash.FingerPictureBox();
this.comboBoxVideoDevices = new System.Windows.Forms.ComboBox();
this.SuspendLayout();
//
// vsp
//
this.vsp.BackColor = System.Drawing.Color.Black;
this.vsp.BackgroundImageLayout = System.Windows.Forms.ImageLayout.None;
this.vsp.ForeColor = System.Drawing.Color.White;
this.vsp.Location = new System.Drawing.Point(12, 45);
this.vsp.Name = "vsp";
this.vsp.Size = new System.Drawing.Size(318, 335);
this.vsp.TabIndex = 0;
this.vsp.VideoSource = null;
//
// button_Capture
//
this.button_Capture.Enabled = false;
this.button_Capture.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.button_Capture.ImageIndex = 2;
this.button_Capture.ImageList = this.imageList1;
this.button_Capture.Location = new System.Drawing.Point(215, 386);
this.button_Capture.Name = "button_Capture";
this.button_Capture.Size = new System.Drawing.Size(115, 40);
this.button_Capture.TabIndex = 4;
this.button_Capture.Text = "抓拍图像";
this.button_Capture.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
this.button_Capture.TextImageRelation = System.Windows.Forms.TextImageRelation.ImageBeforeText;
this.button_Capture.UseVisualStyleBackColor = true;
this.button_Capture.Click += new System.EventHandler(this.button_Capture_Click);
//
// imageList1
//
this.imageList1.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList1.ImageStream")));
this.imageList1.TransparentColor = System.Drawing.Color.Transparent;
this.imageList1.Images.SetKeyName(0, "Button-Play-icon2.png");
this.imageList1.Images.SetKeyName(1, "Button-Stop-icon.png");
this.imageList1.Images.SetKeyName(2, "capture.png");
//
// button_Play
//
this.button_Play.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.button_Play.ImageIndex = 0;
this.button_Play.ImageList = this.imageList1;
this.button_Play.Location = new System.Drawing.Point(16, 386);
this.button_Play.Name = "button_Play";
this.button_Play.Size = new System.Drawing.Size(115, 40);
this.button_Play.TabIndex = 5;
this.button_Play.Text = "开启视频";
this.button_Play.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
this.button_Play.TextImageRelation = System.Windows.Forms.TextImageRelation.ImageBeforeText;
this.button_Play.UseVisualStyleBackColor = true;
this.button_Play.Click += new System.EventHandler(this.button_Play_Click);
//
// fingerPictureBox4
//
this.fingerPictureBox4.ActiveImage = null;
this.fingerPictureBox4.AllowDrop = true;
this.fingerPictureBox4.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.fingerPictureBox4.ImageLayout = System.Windows.Forms.ImageLayout.Stretch;
this.fingerPictureBox4.ImageSize = new System.Drawing.Size(173, 196);
this.fingerPictureBox4.InitialImage = null;
this.fingerPictureBox4.Location = new System.Drawing.Point(541, 230);
this.fingerPictureBox4.Name = "fingerPictureBox4";
this.fingerPictureBox4.Size = new System.Drawing.Size(173, 196);
this.fingerPictureBox4.TabIndex = 9;
//
// fingerPictureBox3
//
this.fingerPictureBox3.ActiveImage = null;
this.fingerPictureBox3.AllowDrop = true;
this.fingerPictureBox3.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.fingerPictureBox3.ImageLayout = System.Windows.Forms.ImageLayout.Stretch;
this.fingerPictureBox3.ImageSize = new System.Drawing.Size(173, 196);
this.fingerPictureBox3.InitialImage = null;
this.fingerPictureBox3.Location = new System.Drawing.Point(345, 230);
this.fingerPictureBox3.Name = "fingerPictureBox3";
this.fingerPictureBox3.Size = new System.Drawing.Size(173, 196);
this.fingerPictureBox3.TabIndex = 8;
//
// fingerPictureBox2
//
this.fingerPictureBox2.ActiveImage = null;
this.fingerPictureBox2.AllowDrop = true;
this.fingerPictureBox2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.fingerPictureBox2.ImageLayout = System.Windows.Forms.ImageLayout.Stretch;
this.fingerPictureBox2.ImageSize = new System.Drawing.Size(173, 196);
this.fingerPictureBox2.InitialImage = null;
this.fingerPictureBox2.Location = new System.Drawing.Point(541, 12);
this.fingerPictureBox2.Name = "fingerPictureBox2";
this.fingerPictureBox2.Size = new System.Drawing.Size(173, 196);
this.fingerPictureBox2.TabIndex = 7;
//
// fingerPictureBox1
//
this.fingerPictureBox1.ActiveImage = null;
this.fingerPictureBox1.AllowDrop = true;
this.fingerPictureBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.fingerPictureBox1.ImageLayout = System.Windows.Forms.ImageLayout.Stretch;
this.fingerPictureBox1.ImageSize = new System.Drawing.Size(173, 196);
this.fingerPictureBox1.InitialImage = null;
this.fingerPictureBox1.Location = new System.Drawing.Point(345, 12);
this.fingerPictureBox1.Name = "fingerPictureBox1";
this.fingerPictureBox1.Size = new System.Drawing.Size(173, 196);
this.fingerPictureBox1.TabIndex = 6;
//
// comboBoxVideoDevices
//
this.comboBoxVideoDevices.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBoxVideoDevices.Font = new System.Drawing.Font("宋体", 15.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.comboBoxVideoDevices.FormattingEnabled = true;
this.comboBoxVideoDevices.Location = new System.Drawing.Point(12, 7);
this.comboBoxVideoDevices.Name = "comboBoxVideoDevices";
this.comboBoxVideoDevices.Size = new System.Drawing.Size(318, 29);
this.comboBoxVideoDevices.TabIndex = 10;
//
// FaceCapture
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch;
this.ClientSize = new System.Drawing.Size(727, 444);
this.Controls.Add(this.comboBoxVideoDevices);
this.Controls.Add(this.fingerPictureBox4);
this.Controls.Add(this.fingerPictureBox3);
this.Controls.Add(this.fingerPictureBox2);
this.Controls.Add(this.fingerPictureBox1);
this.Controls.Add(this.button_Capture);
this.Controls.Add(this.button_Play);
this.Controls.Add(this.vsp);
this.MaximizeBox = false;
this.Name = "FaceCapture";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "FaceCapture-AForgeNET-WinForm";
this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.FaceCapture_FormClosing);
this.Load += new System.EventHandler(this.FaceCapture_Load);
this.ResumeLayout(false);
}
#endregion
private AForge.Controls.VideoSourcePlayer vsp;
private System.Windows.Forms.Button button_Capture;
private System.Windows.Forms.ImageList imageList1;
private System.Windows.Forms.Button button_Play;
private Splash.FingerPictureBox fingerPictureBox1;
private Splash.FingerPictureBox fingerPictureBox2;
private Splash.FingerPictureBox fingerPictureBox3;
private Splash.FingerPictureBox fingerPictureBox4;
private System.Windows.Forms.ComboBox comboBoxVideoDevices;
}
}